temp = "python123PYTHON"
print(temp.lower())
print(temp.upper())
temp = "java c python c++"
print(temp.split())
print(temp.count("a"))
print(temp.replace("a", "123"))
print("python".center(10))
print("python".center(10, "*"))
print("python".ljust(10))
print("python".rjust(10, "-"))
print("python".strip())
print("python".strip(" p"))
print("=".join("abc"))
print("python".index("py"))
print("python".find("py"))

